默认打印设置的编辑， 文件管理器不识别U盘修复、文件管理器对中文文件名的支持修复

MainInstruction.cpp

@@ -19,6 +19,7 @@ MainInstruction::MainInstruction(QWidget *parent) :
     connect(ui->sysSetBtn, &QPushButton::clicked, this, std::bind(&MainInstruction::onSpecialButtonClicked, this, 3));
     connect(ui->otherSetBtn, &QPushButton::clicked, this, std::bind(&MainInstruction::onSpecialButtonClicked, this, 4));
     connect(ui->sysUpdateBtn,&QPushButton::clicked, this, std::bind(&MainInstruction::onSpecialButtonClicked, this, 5));
+    connect(ui->btn_defPrintSet, &QPushButton::clicked, this, std::bind(&MainInstruction::onSpecialButtonClicked, this, 6));
 
     // 其他信号槽连接在ui文件中
 
@@ -364,4 +365,4 @@ void MainInstruction::applyStyleSheet()
             )";
 
     this->setStyleSheet(styleSheet);
-}
+}